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Agency Power Headers - Performance Headers
Part #: AP-997-175
$1,000.00 For each
Free Shipping! *to continental U.S. only
Finish: Stainless Steel
Featured Videos
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Video Description:Check out this episode of Andy's Auto Sport TV where we explain all the basics about headers. In the video, we explain why headers open up horsepower gains and explain the difference between different types of headers. We also show how to install headers and then show the resulting horsepower gains with our dyno run results!
Fits On:
99-08 Porsche 996/997
Description:
Improving upon designs, R&D, and delivering a quality product to the market is what Agency Power has continually done. Developing yet another high quality product for the Porsche vehicle, Agency Power has released their Porsche 996/997 performance header kit. These headers are 321stainless steel. Each headers is fully polished with amazing robotic welds. The headers have very strong and precision cut ? inch flanges. The Agency Power headers mount and fit to the factory cat pipes or aftermarket ones. Agency Power designed the headers to change the sound of the Porsche, increase air flow, and improve horsepower. During dyno testing, the headers made almost 5 wheel horsepower. On a Normally Aspirated 996 or 997, this is about average gains for a header kit. Every bit helps and this product is priced and tested to give you that extra advantage.
Headers fit all 996 and 997 models from 99 and up. Headers can also fit the 996 GT3. Headers use all factory gaskets and hardware for installation.
Improving upon designs, R&D, and delivering a quality product to the market is what Agency Power has continually done. Developing yet another high quality product for the Porsche vehicle, Agency Power has released their Porsche 996/997 performance header kit. These headers are 321stainless steel. Each headers is fully polished with amazing robotic welds. The headers have very strong and precision cut ? inch flanges. The Agency Power headers mount and fit to the factory cat pipes or aftermarket ones. Agency Power designed the headers to change the sound of the Porsche, increase air flow, and improve horsepower. During dyno testing, the headers made almost 5 wheel horsepower. On a Normally Aspirated 996 or 997, this is about average gains for a header kit. Every bit helps and this product is priced and tested to give you that extra advantage.
Headers fit all 996 and 997 models from 99 and up. Headers can also fit the 996 GT3. Headers use all factory gaskets and hardware for installation.
We weren't quite sure what to make of Agency Power when the company first hit the scene in 2003. Would it be another fly-by-night company, or would it stand the test of time once the consumer had had a chance to test the goods? Well, Agency Power is running very strong today and is introducing more innovative products every year. Their goal is not to make the most affordable performance product possible, but rather to make the most quality performance product possible. Agency Power offers a multitude of engine, brake, and suspension parts that will help you achieve your vehicle's full potential.
Q: What does a header do? Why buy a header?
A: An exhaust header is a performance product that replaces your factory exhaust manifold and improves an engine's performance by allowing air to flow more freely. The easier an engine breathes the more power it produces. Headers generally use piping with a wider diameter than factory tubing, which allows more air to pass through the exhaust system than factory. A header is one of the easiest bolt-on modifications you can make to increase horsepower, making an effective use of money if your goal is to quickly gain horsepower.
Q: For which vehicles is it necessary to buy a pair of headers? On your website are headers automatically sold in pairs for these vehicles?
A: When purchasing exhaust headers for a V-6 or V-8 engine, the header package is complete with two headers. If your vehicle is a 4-cylinder, there only a single header that is used.
Q: How do you install a header?
A: A header is a direct bolt-on. Simply remove the factory OEM exhaust manifold and the aftermarket header is put in its place. The header is to be attached the head of your vehicle. Remove all the bolts that hold the flanges in place and detach the factory manifold. The down pipe or exhaust pipe should be removed as well and then reattached once the header flanges are bolted back onto the head.
Q: What are the different tubing options for headers and what is the difference between them?
A: There are two major designs for headers: the 4-2-1 design and the 4-1 design. In many cases 4-1 headers are designed for racing applications where the vehicle is being driven at or near redline. The 4-1 design maximizes top end power, whereas the 4-2-1 evenly distributes it throughout the power band. Either way, you're going to be getting more horsepower from a header.
Q: How much does the material used to make the header matter?
A: There are two main materials that headers are manufactured out of: ceramic and stainless steel. Ceramic headers are less expensive, but are prone to cracking if they get to be extremely hot. Stainless steel headers are more expensive but are more durable and generally more stylish. Stainless steel headers can take any kind of heat you throw at it and not prone to cracking.
A: An exhaust header is a performance product that replaces your factory exhaust manifold and improves an engine's performance by allowing air to flow more freely. The easier an engine breathes the more power it produces. Headers generally use piping with a wider diameter than factory tubing, which allows more air to pass through the exhaust system than factory. A header is one of the easiest bolt-on modifications you can make to increase horsepower, making an effective use of money if your goal is to quickly gain horsepower.
Q: For which vehicles is it necessary to buy a pair of headers? On your website are headers automatically sold in pairs for these vehicles?
A: When purchasing exhaust headers for a V-6 or V-8 engine, the header package is complete with two headers. If your vehicle is a 4-cylinder, there only a single header that is used.
Q: How do you install a header?
A: A header is a direct bolt-on. Simply remove the factory OEM exhaust manifold and the aftermarket header is put in its place. The header is to be attached the head of your vehicle. Remove all the bolts that hold the flanges in place and detach the factory manifold. The down pipe or exhaust pipe should be removed as well and then reattached once the header flanges are bolted back onto the head.
Q: What are the different tubing options for headers and what is the difference between them?
A: There are two major designs for headers: the 4-2-1 design and the 4-1 design. In many cases 4-1 headers are designed for racing applications where the vehicle is being driven at or near redline. The 4-1 design maximizes top end power, whereas the 4-2-1 evenly distributes it throughout the power band. Either way, you're going to be getting more horsepower from a header.
Q: How much does the material used to make the header matter?
A: There are two main materials that headers are manufactured out of: ceramic and stainless steel. Ceramic headers are less expensive, but are prone to cracking if they get to be extremely hot. Stainless steel headers are more expensive but are more durable and generally more stylish. Stainless steel headers can take any kind of heat you throw at it and not prone to cracking.
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